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United States Patent | 6,046,681 |
Solop | April 4, 2000 |
A Remote Controlled Door Lock System for securely retracting a locking bolt from engagement to a striker plate disposed in a door jamb. The inventive device includes a solenoid for retracting the lock bolt from engagement to the striker plate, a first microcontroller and associated circuitry for generating and transmitting a first signal representing an access code, receiving and decoding a second signal representing a random value and generating and transmitting a third signal representing a unique alteration of the random value, and a second microcontroller and associated circuitry for receiving and decoding the first and third signals, generating and transmitting the second signal and for generating a fourth signal operable to energize the solenoid.
Inventors: | Solop; John (2296 Chestnut Ave., Ronkonkoma, NY 11779) |
Appl. No.: | 966287 |
Filed: | November 7, 1997 |
Current U.S. Class: | 340/5.26; 70/277; 70/280; 340/5.61; 361/172; 375/352 |
Intern'l Class: | G06F 007/04 |
Field of Search: | 340/825.31,825.54,825.3,505 361/172,171,160,170,139,191,206 375/352 380/23,46 70/277,280,100,124,91,101,141,256,257,262,263,271,443 1/1 |
3906447 | Sep., 1975 | Crafton | 340/825. |
3926021 | Dec., 1975 | Genest et al. | 70/280. |
4206450 | Jun., 1980 | Harden et al. | 340/521. |
4509093 | Apr., 1985 | Stellberger | 361/172. |
4525805 | Jul., 1985 | Prosan et al. | 340/825. |
4870400 | Sep., 1989 | Downs et al. | 340/825. |
5061923 | Oct., 1991 | Miller et al. | 340/825. |